AQSQID: CC0050134

Site Name: Molson

Location: Montréal (Blvd Saint-Joseph Est), N/A

Reporting: True, Located: True

Current AQI: 15.0

Montréal (Blvd Saint-Joseph Est) N/A, CA: 45.542767, -73.572039

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 17, 2019, 3 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
April 17, 2019, 2 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 17, 2019, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 7.5 μg/m3 (31) 31.0
 
April 17, 2019, midnight N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 5.3 μg/m3 (22) 26.0
 
April 16, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
April 16, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 4.7 μg/m3 (20) 30.0
 
April 16, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
April 16, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 3.3 μg/m3 (14) 32.0
 
April 16, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.2 μg/m3 (13) 31.0
 
April 16, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
April 16, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
April 16, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
April 16, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.7 μg/m3 (15) 28.0
 
April 16, 2019, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.7 μg/m3 (15) 27.0
 
April 16, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.4 μg/m3 (14) 25.0
 
April 16, 2019, noon N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 3.7 μg/m3 (15) 23.0
 
April 16, 2019, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
April 16, 2019, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.6 μg/m3 (11) 22.0
 
April 16, 2019, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
April 16, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.4 μg/m3 (6) 27.0
 
April 16, 2019, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.2 μg/m3 (5) 27.0
 
April 16, 2019, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.1 μg/m3 (0) 27.0
 
April 16, 2019, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
April 16, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.0 μg/m3 (4) 27.0
 
April 16, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.4 μg/m3 (6) 26.0
 
April 16, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.2 μg/m3 (1) 26.0
 
April 16, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.7 μg/m3 (7) 25.0
 
April 16, 2019, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.1 μg/m3 (0) 26.0
 
April 15, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
April 15, 2019, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.4 μg/m3 (2) 24.0
 
April 15, 2019, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
April 15, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
April 15, 2019, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
April 15, 2019, 6 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
April 15, 2019, 5 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.5 μg/m3 (10) 22.0
 
April 15, 2019, 4 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.4 μg/m3 (14) 20.0
 
April 15, 2019, 3 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 3.9 μg/m3 (16) 23.0
 
April 15, 2019, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.7 μg/m3 (15) 25.0
 
April 15, 2019, 1 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 4.2 μg/m3 (18) 24.0
 
April 15, 2019, noon N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.8 μg/m3 (12) 24.0
 
April 15, 2019, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
April 15, 2019, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.3 μg/m3 (22) 25.0
 
April 15, 2019, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
April 15, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.4 μg/m3 (14) 26.0
 
April 15, 2019, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.5 μg/m3 (10) 27.0
 
April 15, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.7 μg/m3 (11) 27.0
 
April 15, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 2.7 μg/m3 (11) 26.0
 
April 15, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
April 15, 2019, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.8 μg/m3 (12) 24.0
 
April 15, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
April 15, 2019, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.3 μg/m3 (5) 25.0
 
April 15, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.5 μg/m3 (6) 24.0
 
April 14, 2019, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.9 μg/m3 (12) 24.0
 
April 14, 2019, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 9.2 μg/m3 (38) 38.0
 
April 14, 2019, 9 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.3 μg/m3 (18) 23.0
 
April 14, 2019, 8 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
April 14, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
April 14, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
April 14, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
April 14, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
April 14, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
April 14, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
April 14, 2019, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
April 14, 2019, noon N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
April 14, 2019, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 3.4 μg/m3 (14) 20.0
 
April 14, 2019, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.4 μg/m3 (10) 20.0
 
April 14, 2019, 9 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 1.5 μg/m3 (6) 22.0
 
April 14, 2019, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
April 14, 2019, 7 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
April 14, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.2 μg/m3 (5) 25.0
 
April 14, 2019, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.5 μg/m3 (6) 26.0
 
April 14, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
April 14, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 2.3 μg/m3 (10) 32.0
 
April 14, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 2.4 μg/m3 (10) 35.0
 
April 14, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 3.7 μg/m3 (15) 36.0
 
April 14, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 4.1 μg/m3 (17) 36.0
 
April 13, 2019, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 5.6 μg/m3 (23) 37.0
 
April 13, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 13, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 7.1 μg/m3 (30) 40.0
 
April 13, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 6.5 μg/m3 (27) 41.0
 
April 13, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 4.2 μg/m3 (18) 41.0
 
April 13, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 5.2 μg/m3 (22) 40.0
 
April 13, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 49.0 ppb (38) N/A N/A 3.7 μg/m3 (15) 38.0
 
April 13, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
April 13, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 5.1 μg/m3 (21) 34.0
 
April 13, 2019, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 6.2 μg/m3 (26) 32.0
 
April 13, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.8 μg/m3 (24) 28.0
 
April 13, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
April 13, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
April 13, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
April 13, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
April 13, 2019, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.7 μg/m3 (11) 25.0
 
April 13, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
April 13, 2019, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.2 μg/m3 (13) 27.0
 
April 13, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.9 μg/m3 (16) 27.0
 
April 13, 2019, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 4.9 μg/m3 (20) 26.0
 
April 13, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.7 μg/m3 (24) 28.0
 
April 13, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 6.6 μg/m3 (28) 29.0
 
April 13, 2019, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
April 13, 2019, midnight N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.1 μg/m3 (30) 30.0
 
April 12, 2019, 11 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 7.5 μg/m3 (31) 31.0
 
April 12, 2019, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 6.5 μg/m3 (27) 28.0
 
April 12, 2019, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
April 12, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 5.5 μg/m3 (23) 32.0
 
April 12, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 5.9 μg/m3 (25) 32.0
 
April 12, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 6.7 μg/m3 (28) 32.0
 
April 12, 2019, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 8.2 μg/m3 (34) 34.0
 
April 12, 2019, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 7.7 μg/m3 (32) 32.0
 
April 12, 2019, 3 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 12, 2019, 2 p.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 10.1 μg/m3 (42) 42.0
 
April 12, 2019, 1 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 10.4 μg/m3 (43) 43.0
 
April 12, 2019, noon N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A 11.6 μg/m3 (48) 48.0
 
April 12, 2019, 11 a.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 9.9 μg/m3 (41) 41.0
 
April 12, 2019, 10 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 7.0 μg/m3 (29) 29.0
 
April 12, 2019, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 7.5 μg/m3 (31) 31.0
 
April 12, 2019, 8 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.5 μg/m3 (35) 35.0
 
April 12, 2019, 7 a.m. N/A N/A N/A 36.0 ppb (33) N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 8.7 μg/m3 (36) 36.0
 
April 12, 2019, 6 a.m. N/A N/A N/A 35.0 ppb (32) N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 12, 2019, 5 a.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 10.5 μg/m3 (44) 44.0
 
April 12, 2019, 4 a.m. N/A N/A N/A 38.0 ppb (35) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 12, 2019, 3 a.m. N/A N/A N/A 38.0 ppb (35) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 9.9 μg/m3 (41) 41.0
 
April 12, 2019, 2 a.m. N/A N/A N/A 36.0 ppb (33) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 10.4 μg/m3 (43) 43.0
 
April 12, 2019, 1 a.m. N/A N/A N/A 25.0 ppb (23) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 7.4 μg/m3 (31) 31.0
 
April 12, 2019, midnight N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 11, 2019, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 6.0 μg/m3 (25) 25.0
 
April 11, 2019, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.5 μg/m3 (23) 23.0
 
April 11, 2019, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.2 μg/m3 (26) 28.0
 
April 11, 2019, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 4.7 μg/m3 (20) 32.0
 
April 11, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
April 11, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
April 11, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 4.1 μg/m3 (17) 28.0
 
April 11, 2019, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.9 μg/m3 (16) 26.0
 
April 11, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.1 μg/m3 (13) 26.0
 
April 11, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.4 μg/m3 (14) 25.0
 
April 11, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.7 μg/m3 (11) 24.0
 
April 11, 2019, noon N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.2 μg/m3 (22) 22.0
 
April 11, 2019, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.8 μg/m3 (24) 24.0
 
April 11, 2019, 10 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
April 11, 2019, 9 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 5.6 μg/m3 (23) 23.0
 
April 11, 2019, 8 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 5.7 μg/m3 (24) 24.0
 
April 11, 2019, 7 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.6 μg/m3 (23) 23.0
 
April 11, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.9 μg/m3 (20) 25.0
 
April 11, 2019, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.7 μg/m3 (24) 24.0
 
April 11, 2019, 4 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 5.8 μg/m3 (24) 24.0
 
April 11, 2019, 3 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
April 11, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 5.4 μg/m3 (23) 25.0
 
April 11, 2019, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.9 μg/m3 (25) 25.0
 
April 11, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 4.6 μg/m3 (19) 27.0
 
April 10, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
April 10, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
April 10, 2019, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 4.6 μg/m3 (19) 26.0
 
April 10, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.4 μg/m3 (14) 27.0
 
April 10, 2019, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
April 10, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.4 μg/m3 (23) 29.0
 
April 10, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
April 10, 2019, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.4 μg/m3 (14) 28.0
 
April 10, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
April 10, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 4.5 μg/m3 (19) 26.0
 
April 10, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.4 μg/m3 (18) 25.0
 
April 10, 2019, noon N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.1 μg/m3 (25) 25.0
 
April 10, 2019, 11 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
April 10, 2019, 10 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 3.5 μg/m3 (15) 18.0
 
April 10, 2019, 9 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.5 μg/m3 (10) 22.0
 
April 10, 2019, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 3.8 μg/m3 (16) 23.0
 
April 10, 2019, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
April 10, 2019, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
April 10, 2019, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.6 μg/m3 (19) 22.0
 
April 10, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.1 μg/m3 (17) 23.0